The THS6222 is a differential line-driver amplifier with a current-feedback architecture. The device is targeted for use in broadband power line communications (PLC) line driver applications that require high linearity while driving heavy line loads.
The unique architecture of the THS6222 uses minimal quiescent current while achieving very high linearity. Differential second-harmonic distortion (HD2) under full bias conditions is –117 dBc at 1 MHz and reduces to only –82 dBc at 10 MHz. The amplifier has an adjustable current pin (IADJ) that sets the nominal current consumption along with the multiple bias settings that allow for enhanced power savings where the full performance of the amplifier is not required. Shutdown bias mode provides further power savings during receive mode in time division multiplexed (TDM) systems while maintaining high output impedance. The integrated midsupply common-mode buffer eliminates external components, reducing system cost and board space.
The wide output swing of 58 VPP (100-Ω load) with 32-V power supplies, coupled with over 800-mA current drive (25-Ω load), allows for wide dynamic range that keeps distortion minimal.
The THS6222 is available in a 24-pin VQFN package with exposed thermal pad and is specified for operation from –40°C to +85°C ambient temperature.
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|Part number||Order||Number of channels (#)||Architecture||Total supply voltage (Min) (+5V=5, +/-5V=10)||Total supply voltage (Max) (+5V=5, +/-5V=10)||BW @ Acl (MHz)||Acl, min spec gain (V/V)||Vn at flatband (Typ) (nV/rtHz)||Vn at 1 kHz (Typ) (nV/rtHz)||Iq per channel (Typ) (mA)||Vos (offset voltage @ 25 C) (Max) (mV)||Rail-to-rail||Features||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)||CMRR (Typ) (dB)||Input bias current (Max) (pA)||Offset drift (Typ) (uV/C)||GBW (Typ) (MHz)||Output current (Typ) (mA)||2nd harmonic (dBc)||3rd harmonic (dBc)||@ MHz|
||1||PLC Line Driver||8||32||128||5||2.7||9||19.5||No||
|-40 to 85||VQFN | 24||24VQFN: 20 mm2: 4 x 5 (VQFN | 24)||64||6000000||128||400||98||89||1|
||1||PLC Line Driver||10||28||150||10||2.7||9||21||50||No||
|-40 to 85||VQFN | 24||24VQFN: 20 mm2: 4 x 5 (VQFN | 24)||65||3500000||155||150||417||100||89||1|
||2||DSL Line Driver||10||28||160||1||2.7||8.5||21||50||No||
|-40 to 85||
HTSSOP | 24
VQFN | 24
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24VQFN: 20 mm2: 4 x 5 (VQFN | 24)